US2875936A - Folding box - Google Patents

Description

1. H. FowLE FOLDING BOX March 3, 1959 Filed Aug. 28, 1957 BY H- f %,M

A TORNEYS INVENTOR. lRVING H- FOWLE United States Patent FOLDING BOX Bingharnton, N. Y., assignor to General Irving H. Fowle,

New York, N. Y., a cor- Aniline & Film Corporation, poration of Delaware This invention relates to paperboard boxes'of the folding type and, more particularly, to a folding paper box having an inner and outer telescoping cover.

It is often desirable to utilize a folding paper box for housing or carry contents which are sensitive to light, dust, or other forms of contamination which would ad versely affect the contents of the box. It is the object of this invention to provide a folding paper box for carrying easily contaminated contents having two covers which provide the means for protecting the contents of the box.

In the packaging of photographic sheet film or paper, it is advantageous to have easy access to the contents when working in the darkroom and, at the same time, assure light-tightness of the package. Heretofore, to assure light protection and safety from accidental opening of the package, it was customary to place such material in double containers, one fitting into the other. While this gave sufficient protection to the contents, it had the disadvantage that handling the material was difficult, since both containers had to be opened and the contents removed for use.

The construction in accordance with this invention eliminates the above disadvantages while retaining the safety features, there being provided a folding paper box having a pair of covers wherein the inner cover is hingedly connected in a manner so progressively lifted only after the outer cover has first been lifted and in proportion to the extent of travel thereof.

In order to accomplish these objects, the box is constructed with a tray-like body having upstanding side walls and a cover integral therewith adapted to telescope over the side walls. The side of the body which is integral with the cover is the hinge section, and attached to this hinge section is an inverted cover member which is adapted to close over the contents and telescope within the side walls of the body porton. As the outer cover is raised, the hinge section is pivoted and the inner cover will be automatically lifted off the contents.

Other objects and features will be apparent from the following description of the invention, pointed out in particularity in the appended claims, and taken in connection with the accompanying drawings, in which:

Fig. 1 is a perspective view of the folding box of this invention showing the box in wide open position;

Fig. 2 is a-perspective view showing the folding box and its inner telescoping cover member in partially opened position; and

Fig. 3 is a side sectional view.

Referring to the drawing, a body member which is adapted to contain the contents of the box comprises a bottom 11 and three upstanding side walls 12. The

that it is automatically and fourth side wall of the body is a hinged portion 13 which is integral with a telescoping outer cover member 14. This outer cover member also has a bottom 15 and three side walls 16.

To provide means for protecting any contents which are subject to contamination and which are supported in the body 10, an inner cover member 18 is provided. This inner cover member is in the form of a rectangular tray having a bottom 20 and four side walls 22. One of these side walls is secured by suitable means, such as adhesive or the like 24, to the integral hinged portion 13 connecting the body 10 and the cover 14. The inner and outer telescoping covers 18 and 14 present a sinuous labyrinth between any contents in the body 10 and any contamination outside the box. This arrangement is also effective in preventing leakage of any granular material in the box.

It is believed that the function of the box is apparent from the foregoing; however, the operation is briefly as follows. Any suitable contents which may be subject to various forms of contamination are placed in the body member 12 and the inner cover 18 is adapted to telescope within the side walls 12 of the body 10. The outer cover 14 is adapted to telescope over the side walls 12, as shown in Fig. 3. When the outer cover 14 is pivoted rearwardly to open the box, the hinged portion 13 will pivot and cause inner cover member 18 to follow as it is rigidly secured to the hinged portion 13. Thus, the inner cover member 18 will follow as the outer member 14 is opened.

If anyone should thoughtlessly open this container of light-sensitive material, the fact that the inner cover member 18 will not immediately follow the opening of the outer cover 14, there being approximately a difference between their respective angular displacement, gives an opportunity to close the cover before damage results to the contents.

I claim:

1. A box comprising a body tray including a bottom and side walls extending upwardly about sides of the bottom, a cover member integral with and hingedly connected to one of the sides of the tray, said cover member having three side walls and being adapted to telescope over the side walls of said tray, and an inner cover member having the form of a tray with four side walls, said inner cover member being secured to the hinged side of the bottom tray and being adapted to telescope into the body member when the cover member is closed.

2. A folding paperboard box comprising a tray-like body having three upstanding side walls and a fourhinged side wall, an outer cover member integral with the hinged side wall and hinged thereto, said cover member also having three upstanding side walls, and a rigid tray-like inner cover member having four side walls being secured by a side wall thereof to the hinged side wall between the cover and the body, said side walls of the inner cover member adapted to telescope with the side walls of the tray-like body when the outer cover member is folded over to close the body.

References Cited in the file of this patent UNITED STATES PATENTS 1,666,652 Hiering Apr. 17, 1928 2,053,529 Nelson Sept. 8, 1936 FOREIGN PATENTS 548,141 Great Britain Sept. 28, 1942

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